import Vue from 'vue'
import Router from 'vue-router'
import Login from './components/login.vue'
import Home from './components/home.vue'
Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    { path: '/home', component: Home }
  ]
})

//挂路由导航守卫
router.beforeEach((to, from, next) => {
  //to将要访问的路径 from 从那个路径 跳转而来 next 是个函数 next 直接放行 或者next(路径) 强制跳转
  if (to.path === '/login') return next()
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})
export default router
